Balefire Dragon (Topper) [Ultimate Masters Box Topper] Arcane where X is the number

where X is the number of colors among those creatures

Set: Core Set 2019 Type: Legendary Planeswalker — Liliana Rarity: Mythic Cost: {3}{B}{B} +1: Target player loses 2 life

Set: Kaladesh Prerelease Promos Type: Legendary Creature — Human Advisor Rarity: Rare Cost: {1}{W}{B} Whenever an opponent casts a noncreature spell

Set: Vanguard Series Type: Vanguard Rarity: Rare {0}: Untap target attacking creature you control and remove it from combat

but soon formed again

Balefire Dragon (Topper) [Ultimate Masters Box Topper] Arcane where X is the numberSet: Ultimate Masters Box Topper Type: Creature Dragon Rarity: Mythic Cost: {5}{R}{R} Flying Whenever Balefire Dragon deals combat damage to a player, it deals that much damage to each creature that player controls.